Multi-Window MQL5 Interfaces and Mouse-Click Priority Handling

Summary

This article extends an MQL5 graphical-interface library to support multiple windows and manage which controls receive left-clicks. Opening a dialog generates a custom event; the event handler identifies the window, records the previously active window, activates the dialog, and blocks other windows and their controls. When windows are deactivated, their appearance and element focus are reset, and tooltips can be hidden if they belong to an inactive window.

The article also describes restoring click priorities when a window becomes active or a control is moved. A priority system helps prevent overlapping graphical objects from competing for the same mouse action. The material is an implementation guide with code-level event and state handling, not a trading method or an evaluation of financial results. Its examples concern interface behavior inside MQL applications.

Key ideas

• A custom event signals that a dialog window has opened and prompts the interface to update its active-window state.
• The library stores the previously active window so control can return to it when a dialog closes.
• Inactive windows are blocked, their visual focus is reset, and their controls no longer receive clicks.
• Click priorities are restored for controls in the active window to manage interaction among graphical objects.
• The article demonstrates interface implementation rather than trading logic or strategy performance.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.